Robotic vacuum



FIG. 1 is a front perspective view of a robotic vacuum showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in drawings illustrate portions of the robotic vacuum that form no part of the claimed design. The dot-dashed broken lines define boundaries of the claimed design and form no part the claimed design. 

CLAIM The ornamental design for a robotic vacuum, as shown and described. 